Bo Nilsson (1 May 1937 – 25 June 2018) was a Swedish composer and lyricist. Career Bo Nilsson was born in Skellefteå, and first drew notice as a composer at the age of 18 when his Zwei Stücke (Two Pi
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043d11b5e15a4315d571553fdf18e4d954c1337ca4ecc8c58bd72e0a4d1d7f2. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d05c35d0-a948-43ee-95ed-b03e01e7ce69.json and https://artists.proofprofile.net/proofs/artist/d05c35d0-a948-43ee-95ed-b03e01e7ce69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c57cbf023cdd7ea2b0012a91c0254e79e2d61290b2eaf05cae56a68643df725. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAGA9508010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb957ab8b91733197e7d15f21146f312959c500ad10ca73999c992da2e66562f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAGA9508020.
Classical Chill 1 - The Ultimate Collection
A Spirit's Whisper: Selected Works by Bo Nilsson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5459cf51cba8705e669fea73781c01419980ef7737606189f48acd9f9bef7b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEPXS9710110.
Britten: Fanfare for St. Edmondsbury / Suite No. 1 / Sinfonietta
Arctic Air - Unknown Works by Bo Nilsson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5f5f3ee794d7ff9ffe318bc3261a3480effdbd0256ff5e229dab8a06cc4c2a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAGA0212010.
NORRBOTTEN RHAPSODY-Norrbottens Kammarorkester
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c56f5166d0dcc7f1ad0fca1849f200c584908f30af1b5d4cd5db38f9d13b7d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1030426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1bd1b719eda9dd278c8b948f5928685ff68564cf5eb93e7b0455dcdbe6c574. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199314602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c195b319f67c9fcd72427255dde3526cce71ca02c842b5b3d0ad95346ea9f95. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199809304.
Frösöblomster I, Op. 16: VI. Vid Frösö kyrka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9c14d39a5aa537cc7cb3262b720d250e7e8dabe96373fac34972f387cc34ee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199748306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd861ddd6cc4bd61826e725fce5e41a6003cdd7d09a6df26b6ee59a334d3dd810. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199314606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5884ab7e6719b68ee22d8d5de09169253af77fcbf9ae126f5bac07ca035732. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190620218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acf4a196b89ce40fd012cb69d10e0e3610d4712917fe2989432eb48e2f9574a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199938904.
Dagens stunder, Op. 19: III. Romans: Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b3ba77b5d765b2350382bee1c994f8789eaba622a3f2bc2bf72b85a9430b05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190601312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e0ac9062b4f9f0bfe37c239d109cd2d9cd4fba200bc65e6bff7ad9f899ab4c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190592903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f7ef2a84df537206d581055087d8b5b6687644fc13553f0571ad45115cb756. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190620203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728d137c67593e870763ca5ecf141040d357019c3a4b4a25f2c0f033033e49bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199314613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5efe733fd4665c1e4c3ead6bb2565a234c777b4e5928b58475377dbc1df7a63. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199262901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ac36ea55ce0d3ce79b2825540e134dd9402d67c60b3fde8314d897c389eb83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199809309.
Frösöblomster I, Op. 16: IV. Till rosorna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffca429deed251d4846b6b645283202e4eaa0356752fa742a9c26461426e9d78. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199748304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe523d12910a7d0220a1ae50f763dacaee5fcf5aa5938f59151f31ebe57849180. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190592908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945e1d7cfbf670aaf94ce6a58164c424aed1b9d180fd664f813f8a9958b5018f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190601320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b35734915e96badcfdd140c9529c77ceac082f2ed1144f73b464959a37e268. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190617308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937cc20c37afbc2b047745b107b97be06e29dc459321514e5871ec4c7b7828ea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190056001.
David Tudor: Piano Avant-Garde (1956-60)